Printing-press.



G. P. FENNER.

PRINTING PRESS. APPLICATION TILED JUL: 1751909.

Patented Feb. 7, 1911.

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G. P. FENNER.

PRINTING PRESS.

APPLICATION 1111.211 JULY 11. 1909.

983,698. Patented Feb. 7, 1911.

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G. P. PENNER. PRINTING PRESS. APPLICATION FILED JULY 17, 1909.

Patented Feb. 7, 1911.

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' GEORGE P. FENNER, OF NEW LONDON, CONNECTICUT.

PRINTING-PRESS.

To all whom it may concern:

Be it known that I, GEORGE P. FENNER, a citizen of the United States,residing at New London, county of New London, and State of Connecticut,have invented new and useful Improvements in Printing-Presses, of whichthe following is a specification.

This invention relates to a printing press and the object of theinvention is to accom plish the raising of the impression cylindersteadily from the time it starts until it is fully lifted. The timeconsumed in lifting is such that the tail of the sheet which has beenprinted has passed out from under the feed guide before the cylinder isclear up. This object is accomplished by the arrangement of mechanismset forth in the following specification and claim and illustrated inthe annexed drawing in which Figure l is a side elevation of a printingpress embodying my invention. Fig. 2 is a plan View of Fig. 1, theimpression cylinder and type bed having been removed. Fig. 3 is a sideelevation showing parts in difierent position than in Fig. 1. Fig. 4 isa like view showing parts in different position than in Fig. 3.

In this drawing the letter a indicates the base or supporting frame.

The impression cylinder is indicated at b and the type bed at c. Thesheets coming ofi the feed board (Z are taken by the grippers e andcarried about by the cylinder to the type bed.

The shaft of the cylinder Z) is shown at f and is mounted in aneccentric sleeve 9 from Which extends arm it connected with rod 71. Thisrod 2' is actuated by lever is fulcrumed at m and engaged by areciprocating connection it provided with two antifriction disks 0.Between these disks 0 are mounted cams p, g on shaft 4, the gears s ofwhich mesh by gears 25 and a with gears on the impression cylinder so asto receive motion therefrom. As the cams p, g are rotated theSpecification of Letters Patent.

Application filed July 17, 1909.

mated Feb. 7, 1911.

Serial No. 508,157.

connection a is reciprocated to oscillate the lever 70 and causes thelifting rod and connection i to swing the arm with eccentric sleeve 9 toraise or lower the cylinder 5.

As seen a double cam face is provided by the two cams p and g actingrespectively on the roller 0 provided for each face.

The arrangement before set forth gives an easy upward and downwardmovement continuous from the start to the finish.

The drawing shows a complete cam lifting mechanism for each side of thepress that is, two such mechanisms but only one is necessary. Shaft m isoscillated by the cams on the opposite sides of the press from thegears. This makes it unnecessary to have the same cam mechanism withconnections n on the side of the press next to the gears. All such andsimilar modifications are included in the scope of this invention.

I claim:

In a press, the combination of a reciprocatory type bed, an impressioncylinder, eccentric sleeves supporting said cylinder and havingoperating arms connected thereto, gearing for operating the impressioncylinder, a countershaft operatively connected to said gearing andequipped with two pairs of cams arranged toward the opposite sides ofthe press, and apair of reciprocatory members connected to the operatingarms of the respective sleeves of the impression cylinder, each memberhaving a pair of laterally offset rollers cooperative with therespective cams of each pair whereby steady rising and falling motion isimparted to both sides of the impression cylinder.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

GEORGE P. FENNER.

Witnesses:

E. L. HUDSON, W. D. WELLS.

